/*
 * Copyright ConsenSys AG.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
package org.hyperledger.besu.ethereum.rlp;

import org.apache.tuweni.bytes.Bytes;
import org.apache.tuweni.bytes.MutableBytes;

/** An {@link RLPOutput} that writes RLP encoded data to a {@link Bytes}. */
public class BytesValueRLPOutput extends AbstractRLPOutput {
    /**
     * Computes the final encoded data.
     *
     * @return A value containing the data written to this output RLP-encoded.
     */
    public Bytes encoded() {
        final int size = encodedSize();
        if (size == 0) {
            return Bytes.EMPTY;
        }

        final MutableBytes output = MutableBytes.create(size);
        writeEncoded(output);
        return output;
    }
}
